jenna: and jim lehrer in that chair -- i don't know if that's him with his back to us, it could be. the university of denver, a huge situation for the city being that there's going to be a lot of traffic and a lot of activity. but in the meantime, this is a very important debate that kicks off a series of presidential debate, the first time these two men will face each other on the stage tomorrow night. gregg: right. a fox news alert, two u.s. border patrol agents are shot, one of them is dead near a remote drug smuggling route in southern arizona, and now that area -- as we speak -- flooded with agents on horseback and choppers in the air in the manhunt for the killer or killers. all of this taking place very close to a border station that was renamed in honor of agent brian terry whose murder was linked to the botched gun-running operation known as fast and furious. william la jeunesse joins us live from los angeles. william, what are you learning about this shooting? >> reporter: well, gregg, as you said, you've got deputies and agents, state and federal helicopters, the manhunt